I've just noticed that many people are still confused about the basic concepts in the market. The question is, which one is supply? These are the mechanisms that drive the prices of everything we trade, whether stocks, gold, or even digital assets.

Actually, demand and supply are simpler than you think. They are the desire to buy and the desire to sell. When more people want to buy, the price goes up. When more people want to sell, the price goes down. That's all there is to it.

The law of demand states that low prices → increased desire to buy; high prices → decreased desire to buy. This is opposite to supply: high prices → increased willingness to sell; low prices → decreased willingness to sell. Why is this? Because two things happen. First is the income effect: when prices fall, our money becomes more valuable, allowing us to buy more. Second is the substitution effect: when this product becomes cheaper, we stop buying other things and buy this instead.

So what about supply? It is the quantity of goods that sellers are willing to offer at different prices. When prices are high, sellers are happy to sell more because the profit is good. When prices are low, sellers hold back on selling. Equilibrium occurs where demand and supply meet—that is, where price and quantity are balanced. If the price rises from this point, sellers will sell more, but buyers will buy less, leading to excess inventory and a falling price. If the price drops from this point, buyers want to buy more, but sellers want to sell less, causing shortages and prices to rise.

In financial markets, this is not just about price changes; it’s more complex. Macroeconomic factors like interest rates, inflation, and investor confidence all affect demand. System liquidity: the more money there is, the higher the investment demand. Supply in the stock market depends on company decisions—raising capital or buybacks—as well as regulations and new listings.

A good example is when the Hormuz Strait closes due to Iran’s situation, causing about 20% of the world’s oil to disappear. Supply drops sharply, but energy demand remains. The result is a rapid spike in oil prices—that’s a supply shock.

In the stock market, this concept also applies. If stock prices rise, it’s not necessarily because the stock is good, but because more people want to buy than sell. Conversely, prices fall because more people want to sell than buy. In fundamental analysis, we see demand and supply as driven by earnings forecasts, company growth, or events affecting value. Good news → more buyers → prices go up. Bad news → more sellers → prices go down.

In trading techniques, we use tools to observe buying and selling pressure. Green candlesticks indicate strong demand; red candlesticks indicate strong supply. If prices keep making new highs, demand is still strong. If prices keep making new lows, supply is gaining strength. Support levels are points where demand waits to buy; resistance levels are points where supply waits to sell.

A popular technique is the Demand Supply Zone, which looks for moments when prices move sharply and then consolidate. This is where buying and selling forces clash. When prices break out, it signals a new trend. DBR (Drop Base Rally) means prices fall sharply, form a base, then rise again. RBD (Rally Base Drop) is the opposite: prices rise sharply, form a base, then fall.

For trend-following trades, RBR (Rally Base Rally) means strong upward movement, forming a base and continuing higher. DBD (Drop Base Drop) indicates a sharp decline, forming a base and continuing lower.

It’s not hard to understand which is supply and how to use it to analyze the market. But it requires practice—observe, experiment, and watch real prices to visualize it. Demand and supply are fundamental concepts used by economists, traders, and investors alike. If you understand this well, your price predictions will become more accurate.